Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1bb224da821cf747d498792c3cc559039040d39c578a05c799b437c0c4d5e0e7' 
  AND token = 'ooL0Xk2tIO/3iGNvVj6vW5G/vCJzxVLYnEWZmtaM0ww=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}